Malware Analysis Report

2025-08-06 00:57

Sample ID 241017-bgyrwsxckm
Target 5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124
SHA256 5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124
Tags
agenttesla collection discovery keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124

Threat Level: Known bad

The file 5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124 was found to be: Known bad.

Malicious Activity Summary

agenttesla collection discovery keylogger spyware stealer trojan

AgentTesla

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

outlook_win_path

Suspicious use of WriteProcessMemory

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-17 01:07

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-17 01:07

Reported

2024-10-17 01:10

Platform

win7-20241010-en

Max time kernel

78s

Max time network

79s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2772 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe

"C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 ftp.aminhacorretora.com.br udp
US 162.241.203.30:21 ftp.aminhacorretora.com.br tcp

Files

memory/2772-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

memory/2772-1-0x00000000012B0000-0x0000000001382000-memory.dmp

memory/2772-3-0x0000000000DD0000-0x0000000000E6E000-memory.dmp

memory/2772-2-0x0000000073F60000-0x000000007464E000-memory.dmp

memory/2772-4-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

memory/2772-5-0x0000000073F60000-0x000000007464E000-memory.dmp

memory/2772-6-0x00000000007F0000-0x000000000080A000-memory.dmp

memory/2772-7-0x00000000007C0000-0x00000000007C6000-memory.dmp

memory/2772-8-0x0000000073F60000-0x000000007464E000-memory.dmp

memory/2692-9-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2692-11-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2692-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2692-15-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2692-13-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2772-19-0x0000000073F60000-0x000000007464E000-memory.dmp

memory/2692-20-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2692-24-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2692-22-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2772-25-0x0000000073F60000-0x000000007464E000-memory.dmp

memory/2692-27-0x0000000073F60000-0x000000007464E000-memory.dmp

memory/2692-26-0x0000000073F60000-0x000000007464E000-memory.dmp

memory/2692-34-0x0000000073F60000-0x000000007464E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-17 01:07

Reported

2024-10-17 01:10

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4448 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4448 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4448 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4448 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4448 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4448 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4448 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4448 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe

"C:\Users\Admin\AppData\Local\Temp\5b79bb5c716c9797e048785965be3c3a54a73a587d23d0027130cb31b618e124.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 27.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 ftp.aminhacorretora.com.br udp
US 162.241.203.30:21 ftp.aminhacorretora.com.br tcp
US 8.8.8.8:53 30.203.241.162.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/4448-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

memory/4448-1-0x0000000000480000-0x0000000000552000-memory.dmp

memory/4448-2-0x0000000005520000-0x00000000055B2000-memory.dmp

memory/4448-3-0x00000000055C0000-0x000000000565C000-memory.dmp

memory/4448-4-0x0000000005C10000-0x00000000061B4000-memory.dmp

memory/4448-5-0x0000000074D70000-0x0000000075520000-memory.dmp

memory/4448-6-0x0000000005660000-0x00000000056FE000-memory.dmp

memory/4448-7-0x00000000059A0000-0x00000000059AA000-memory.dmp

memory/4448-8-0x0000000074D70000-0x0000000075520000-memory.dmp

memory/4448-9-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

memory/4448-10-0x0000000074D70000-0x0000000075520000-memory.dmp

memory/4448-11-0x0000000007220000-0x000000000723A000-memory.dmp

memory/4448-12-0x0000000009810000-0x0000000009816000-memory.dmp

memory/1968-13-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1968-15-0x0000000074D70000-0x0000000075520000-memory.dmp

memory/4448-16-0x0000000074D70000-0x0000000075520000-memory.dmp

memory/1968-18-0x0000000074D70000-0x0000000075520000-memory.dmp

memory/1968-17-0x00000000057D0000-0x0000000005836000-memory.dmp

memory/1968-19-0x0000000006C90000-0x0000000006CE0000-memory.dmp

memory/1968-20-0x0000000006EB0000-0x0000000007072000-memory.dmp

memory/1968-30-0x0000000074D70000-0x0000000075520000-memory.dmp